/*
 * Copyright (c) 2004-2022, University of Oslo
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its contributors 
 * may be used to endorse or promote products derived from this software without
 * specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.hisp.dhis.dxf2.importsummary;

import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.dataformat.xml.annotation.JacksonXmlElementWrapper;
import com.fasterxml.jackson.dataformat.xml.annotation.JacksonXmlProperty;
import com.fasterxml.jackson.dataformat.xml.annotation.JacksonXmlRootElement;
import com.google.common.base.MoreObjects;
import java.util.ArrayList;
import java.util.Comparator;
import java.util.List;
import java.util.Optional;
import javax.annotation.Nonnull;
import org.hisp.dhis.common.DxfNamespaces;
import org.hisp.dhis.dxf2.common.ImportOptions;
import org.hisp.dhis.webmessage.WebMessageResponse;

/**
 * @author Morten Olav Hansen <mortenoh@gmail.com>
 */
@JacksonXmlRootElement(localName = "importSummaries", namespace = DxfNamespaces.DXF_2_0)
public class ImportSummaries implements WebMessageResponse {

  private ImportStatus status = ImportStatus.SUCCESS;
  private int imported;
  private int updated;
  private int deleted;
  private int ignored;
  private ImportOptions importOptions;
  private List<ImportSummary> importSummaries = new ArrayList<>();

  public ImportSummaries() {}

  @Nonnull
  @Override
  public Class<? extends WebMessageResponse> getResponseClassType() {
    return ImportSummaries.class;
  }

  public void addImportSummaries(ImportSummaries importSummaries) {
    importSummaries.getImportSummaries().forEach(this::addImportSummary);
  }

  public void addImportSummaries(List<ImportSummary> importSummaries) {
    for (ImportSummary importSummary : importSummaries) {
      this.addImportSummary(importSummary);
    }
  }

  public ImportSummaries addImportSummary(ImportSummary importSummary) {
    if (importSummary == null) {
      return this;
    }

    if (importSummary.getImportCount() != null) {
      imported += importSummary.getImportCount().getImported();
      updated += importSummary.getImportCount().getUpdated();
      deleted += importSummary.getImportCount().getDeleted();
      ignored += importSummary.getImportCount().getIgnored();
    }

    importSummaries.add(importSummary);

    status = getHighestOrderImportStatus();

    return this;
  }

  public String toCountString() {
    return String.format(
        "Imported %d, updated %d, deleted %d, ignored %d", imported, updated, deleted, ignored);
  }

  public boolean isStatus(ImportStatus status) {
    ImportStatus st = getStatus();

    return st != null && st.equals(status);
  }

  public boolean hasConflicts() {
    for (ImportConflicts importConflicts : importSummaries) {
      if (importConflicts.hasConflicts()) {
        return true;
      }
    }
    return false;
  }

  public Optional<ImportSummary> getByReference(String reference) {
    for (ImportSummary importSummary : importSummaries) {
      if (importSummary.getReference() != null && importSummary.getReference().equals(reference)) {
        return Optional.of(importSummary);
      }
    }
    return Optional.empty();
  }

  /**
   * Returns the {@link ImportStatus} with the highest order from the list of import summaries,
   * where {@link ImportStatus#ERROR} is the highest. If no import summaries are present, {@link
   * ImportStatus#SUCCESS} is returned.
   *
   * @return import status with highest order.
   */
  public ImportStatus getHighestOrderImportStatus() {
    return importSummaries.stream()
        .map(ImportSummary::getStatus)
        .max(Comparator.comparingInt(ImportStatus::getOrder))
        .orElse(ImportStatus.SUCCESS);
  }

  @JsonProperty
  @JacksonXmlProperty(namespace = DxfNamespaces.DXF_2_0)
  public ImportStatus getStatus() {
    return status;
  }

  public void setStatus(ImportStatus status) {
    this.status = status;
  }

  @JsonProperty
  @JacksonXmlProperty(namespace = DxfNamespaces.DXF_2_0)
  public int getImported() {
    return imported;
  }

  @JsonProperty
  @JacksonXmlProperty(namespace = DxfNamespaces.DXF_2_0)
  public int getUpdated() {
    return updated;
  }

  @JsonProperty
  @JacksonXmlProperty(namespace = DxfNamespaces.DXF_2_0)
  public int getDeleted() {
    return deleted;
  }

  @JsonProperty
  @JacksonXmlProperty(namespace = DxfNamespaces.DXF_2_0)
  public int getIgnored() {
    return ignored;
  }

  @JsonProperty(access = JsonProperty.Access.READ_ONLY)
  @JacksonXmlProperty(namespace = DxfNamespaces.DXF_2_0)
  public int getTotal() {
    return imported + updated + deleted + ignored;
  }

  @JsonProperty
  @JacksonXmlProperty(namespace = DxfNamespaces.DXF_2_0)
  public ImportOptions getImportOptions() {
    return importOptions;
  }

  public void setImportOptions(ImportOptions importOptions) {
    this.importOptions = importOptions;
  }

  @JsonProperty
  @JacksonXmlElementWrapper(localName = "importSummaryList", namespace = DxfNamespaces.DXF_2_0)
  @JacksonXmlProperty(localName = "importSummary", namespace = DxfNamespaces.DXF_2_0)
  public List<ImportSummary> getImportSummaries() {
    return importSummaries;
  }

  public void setImportSummaries(List<ImportSummary> importSummaries) {
    this.importSummaries = importSummaries;
  }

  public String toMinimalString() {
    return MoreObjects.toStringHelper(this)
        .add("imported", imported)
        .add("updated", updated)
        .add("deleted", deleted)
        .add("ignored", ignored)
        .toString();
  }

  @Override
  public String toString() {
    return "ImportSummaries{" + "importSummaries=" + importSummaries + '}';
  }
}
